My SO's gaining weight like crazy.. and its BUGGING ME... now, before you come down hard on me, this thread might not be what u think... so please hear me out, hope you would take the time to read all of this, and i would love opinions and advice

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this isn't a physical issue, more a psychological one.
i was reading Caxe's thread and i guess u can say it inspired me... well, with the holiday seasons and all, me and my SO (we've just recently decided to give our 'relationship a trial run for real, since having it on off for 3 years), we're basically looong time friends, he's also a family friend.. he was my cousin's best friend.. so, in other words, this xmas we got to visit a lot of xmas gatherings with plenty of old friends.
Now my SOs around his late 20s, i myself am turning 22 in a couple of months. He's very good looking, and have always been well built, with broad shoulders and a muscular chest. i'm not too shabby looking either

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So the things is... i think in the last year or so, he's packed on roughly about 40 pounds. Now i can honestly say i really don't mind his physical appearance, in fact, i think he looks more loved and vulnerable this way, less of the 'player' type, and i find it more sexy, really

. However, aside from the health issue (exercise and heathy food i know), THIS is what really bugs me...
his lack of self esteem.
we women (i'm sure u'd all agree) love confident men. He's always been very self assured, sometimes almost arrogant really, but now, he seems more unsure of himself. i've noticed at the parties when old friends ask why he's gained so much weight, he'd usually joke and shrug it off with a comment like "I've already got a beautiful girlfriend there's no need for me to keep that up". but i can tell it bugs him, especially when a guy gives me the eye or worse hits on me in front of him.
Sooo HE actually confronted me with it the other day (albeit jokingly, don't u just love how men always veil the most crucial discussions with bad humour???

).. he asked if i'm ever attracted to these cookie cutter jocks who hits on me. and i did my best to reassure him, that i love him the way he is, and i still find him DAMMMMNN hot! and reinforced it with a lil *ahem* session

afterwards.
Now, i'm a psych major... i did my best in trying to make things better! but it seems to have gotten worse!

he's getting clingy and more unsure of himself, needing constant positive feedbacks more and more often... i feel like i have to URGE him to do anything! AND HE's THE ONE WHO TURNS OFF THE LIGHTS FIRST NOWADAYS!!

i hate to say this... but i'm starting to get a bit turned off by this behaviour...
GUYS don't hesitate to give me your opinions!! anything at all..!!! personal experiences etc...